App image on landing, and show loading skeleton while it gets app images

[johbaxter]

On the App Landing page, we do not actually pull the image that is stored for the app,

1. We need to do so on the tile card

http://localhost:9090/Monolith/api/app-6b8f54dc-76d0-4495-91bc-2b36121ff70b/appImage/download

As done on the app workspace we hit this end point:

http://localhost:9090/vha-supply/api/project-3daab130-9bae-4527-a346-e9f0cebc66ea/projectImage/download

2. For loading purposes on the App card while we get images, we need to show better loading

Look at mui and pulsate example

---

• Show app image on app card
• Show load state while we are loading in app image